1069731899 has 2 divisors, whose sum is σ = 1069731900. Its totient is φ = 1069731898.

The previous prime is 1069731889. The next prime is 1069731931. The reversal of 1069731899 is 9981379601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1069731899 is a prime.

It is a super-2 number, since 2×1069731899² = 2288652671476292402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1069731899.

It is not a weakly prime, because it can be changed into another prime (1069731829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534865949 + 534865950.

It is an arithmetic number, because the mean of its divisors is an integer number (534865950).

Almost surely, 2^1069731899 is an apocalyptic number.

1069731899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069731899 is an equidigital number, since it uses as much as digits as its factorization.

1069731899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 1069731899 is about 32706.7561674954. The cubic root of 1069731899 is about 1022.7236890425.

The spelling of 1069731899 in words is "one billion, sixty-nine million, seven hundred thirty-one thousand, eight hundred ninety-nine".